In a patient with shock, you want to decrease oxygen demands as the patient has a lower supply of oxygen due to impaired tissue perfusion. Which of the following interventions should you implement, as the Registered Nurse, to prevent increasing oxygen demands?

Choice A rationale Monitoring oxygen saturation only "as needed" is insufficient for a patient in shock. Continuous pulse oximetry and frequent arterial blood gas analysis are necessary to track the patient's respiratory status and the effectiveness of oxygen therapy. In shock, tissue perfusion is impaired, and oxygen levels can drop rapidly. Failing to monitor closely prevents the nurse from making timely interventions to protect the brain and other vital organs from hypoxic injury, which can lead to permanent damage. Choice B rationale Placing a shock patient in a well-lit room with many people increases environmental stimuli, which can cause anxiety and physiological stress. This stress triggers a sympathetic response that increases heart rate and metabolic rate, thereby increasing the body's demand for oxygen. To conserve oxygen, the environment should be kept calm, quiet, and dark. Reducing external stressors is a key nursing intervention to help minimize the metabolic workload on a patient whose oxygen supply is already compromised. Choice C rationale In shock, even small physical movements can significantly increase oxygen consumption. The nurse must turn and reposition the patient very carefully to maintain skin integrity while simultaneously monitoring for signs of respiratory distress or a drop in oxygen saturation. By assessing the patient's response to movement, the nurse can determine if the patient can tolerate the activity or if they require more rest and higher levels of supplemental oxygen to prevent further tissue hypoxia and exhaustion. Choice D rationale While intubation may be necessary if the patient's respiratory status fails, it is not an intervention used specifically to "prevent" increasing oxygen demands in a stable or compensating patient. Intubation is an invasive procedure with its own risks and is reserved for patients who cannot maintain their own airway or oxygenation. The goal for nursing care is to manage the patient's current activity and environment to keep their natural oxygen consumption as low as possible through gentle, prioritized care.